Question How to Unsubscribe users from Admin Panel

My site has over 30.000 users and dozens of them have email accounts that are abandoned.

Thus, since they have subscribed to topics, when they receive an email from someone that has replied to their subscribed topics, the email doesn't reach them and I get a "Mail Delivery Failed" message.

How can I unsubscribe those users from all their topics so that I don't get spammed with "Mail Delivery failed" emails? I can't contact them in any way.

Thanks.

we have added this feature on K4.0

Ok, in which menu can I find this option?

I need to unsubscribe some users from some topics.

There is nothing in User Manager. No option to remove users from topics.





Configuration:

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-08-2014' at line 1 SQL=SHOW FULL FIELDS FROM jos_kunena_messages29-08-2014

Database collation check:

Joomla! SEF: Enabled | Joomla! SEF rewrite: Enabled | FTP layer: Disabled |

This message contains confidential information

htaccess: Exists | PHP environment: Max execution time: 72000 seconds | Max execution memory: 4096M | Max file upload: 1024M

Kunena menu details:

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ID	Name	Menutype	Link	Path	In trash
137	Forum	mainmenu	view=home&defaultmenu=794	forum	No
888	Προφίλ	mainmenu	view=user	forum/profile	No
890	Αναζήτηση	mainmenu	view=search	forum/search	No
891	Τα θέματά μου	mainmenu	view=topics&layout=user&mode=default&modetype=	forum/mytopics	No
892	Νέα θέματα	mainmenu	view=topics&layout=posts&mode=recent&userid=	forum/newtopics	No
876	Forum	kunenamenu	view=home&defaultmenu=878	kunena	No
877	Index	kunenamenu	view=category&layout=list&catid=0	kunena/index	No
878	Recent Topics	kunenamenu	view=topics&mode=replies	kunena/recent	No
879	New Topic	kunenamenu	view=topic&layout=create	kunena/newtopic	No
880	No Replies	kunenamenu	view=topics&mode=noreplies	kunena/noreplies	No
881	My Topics	kunenamenu	view=topics&layout=user&mode=default	kunena/mylatest	No
882	Profile	kunenamenu	view=user	kunena/profile	No
883	Help	kunenamenu	view=misc	kunena/help	No
884	Search	kunenamenu	view=search	kunena/search	No
886	Edit profile	kunenamenu	view=user&layout=edit	kunena/edit-profile	No
885	Forum	mainmenu	Itemid=876	kunena-2014-08-26	No
887	Edit forum profile	gameworld	view=user&layout=edit	edit-forum-profile	Yes

Joomla default template details : whiteboard | author: Opensource | version: 2.6 | creationdate: Unknown

Kunena default template details : Blue Eagle | author: Kunena Team | version: 4.0.0-BETA1 | creationdate: 2015-04-12

Kunena version detailed: Kunena 4.0.3 | 2015-06-29 [ Possagno ]
| Kunena detailed configuration:

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Kunena config settings:
board_offline	0
enablerss	1
threads_per_page	30
messages_per_page	15
messages_per_page_search	20
showhistory	1
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filesize	500
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pickup_category	0
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avatarcrop	0
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teaser	0
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userlist_username	1
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| Kunena integration settings:

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Kunena - AlphaUserPoints Enabled: activity=1 avatar=1 profile=1 activity_points_limit=0
Kunena - Community Builder Enabled: access=1 login=1 activity=1 avatar=1 profile=1 private=1
Kunena - Gravatar Disabled
Kunena - JomSocial Enabled: access=1 login=1 activity=1 avatar=1 profile=1 private=1 activity_points_limit=0 activity_stream_limit=0
Kunena - Joomla Enabled: access=1 login=1
Kunena - Kunena Enabled: avatar=1 profile=1
Kunena - UddeIM Enabled: private=1

| Joomla! detailed language files installed:

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Joomla! languages installed:
el-GR	Greek
en-GB	English (United Kingdom)

Third-party components: Jomsocial 3.2.1.4

Third-party SEF components: None

Plugins: Search - Kunena Search 3.0.1 | JomSocial - My Kunena Forum Menu 2.0.3 | JomSocial - My Kunena Forum Posts 2.0.3 | JomSocial - Kunena Groups 2.0.3

Modules: Kunena Latest 3.0.1 | Kunena Search 3.0.1

on user manager itself, select the user, you have the options in the toolbar.